Shim



April 19,1927. KARMAZIN- 1,625,545

Asnm

Filed March 20. 1925 l t. I r- Patented 'Alpi'. C19, 1927.

' UNiTED. 'srariazs PATENT OFFICE.

JoHN xAnMAzIm or EAST AMHERST, NEW YORK, AssrGNon yro LAMINATED anni:`

COMPANY, INc., or LONG IsLAND CITY, NEW Yonx, A conPoRATIoN or: NEW

snm.

Application led March 20, 1923. Serial No. 626,288.

This invention relates to an improved method of making shims of the typewhich are used to separate the parts of a bearing and which, due to wearof'the shaft in athev bearing or journal, have to be more or lessadaptable to reduction in size.

In some t es of shims it is difficult to reduce the t iekness of theshim uniformly,` and it is one of the objects of my in- 1o `vention toprovide a shim, the thickness of which can be instantly reduced withoutfiling or machining thus making it possible for the motorist whoisdesirous of taking u a bearingto eliminate noise or rattle oi) suchbearing, etc., when .the parts become worn (and who may not have thenecessary equipment at hand to machine or file down a shim), to quicklyaccomplish this work.

A further object of my invention is to provide a shim in which thelaminee arc cut so that they will when assembled in the form of a shi-mhold themselves together without the aid of any binder or the like.

Referring tothe drawings, wherein one embodimentv of my invention isillustrated:

Figure l is a top plan view of the press bed, the pressure member -beingshown in outline, and the shim shown in place upon the bed of lthepress;

Fig. 2 is affront elevation ofthe press showing the laminas that make upthe completed shim in assembled position and ready to be acted upon bythe pressure member;

Fig. 3 is a front elevation of the press i showing'the pressure memberat the limit of its descending movement, the pressure member, bed andshim being shown in partial section;

Fig. 4 is a section taken on line 4-4 of Fig. 3' l Figa is 'a top planview of the completed shim constructed by my improved method; and,

Fig. 6 is a section taken on the line 6--6 of Fig. 5.

Referring to the drawings in detail, 5 indicates a power pressof theusual t pe which comprises apressure head 6 and ed 47, the latter losingprovided at its rear top portion with an arcuatelv cut raised part8,against-the forward edge of winch vmay lbe readily assembled in properrelation the laminaat) which go to make up the comf pleted shim 10.Thislraised portion 8 is 55 less than the shim thickness, 1n heifrht sothat the head 6 in descending will ie allowed to compress the shimlaminas without interference.

In order that the laminas 9 shall be held. together securely I haveprovided tongueshaped projections 1], on the under surface of thilpressure head located so that they will engage the shim in v.itsextended portions 12. lhese projections 1l are cut arcualely outward sothat a point is produced on their ends.` ln i'act the projections serveas punching dies and may be cupped to produce a tongue-shaped cuttingedge.

The laminas are provided with a holel through which the retainin bolt ofa bear# ing is adapted to pass, an are shaped to match'the particularpart of the bearing in which they are placed.

The laminee 9 are assembled according tn the number desired for anyparticular thickness of shim, on the bed of'the'prcss, and when thepressure member descends, the die projections ll force the laminas inthc shape of tongues 14 in the projected portions thereof downwardly sothat each lamination has cut thereoutof oppositely disposed tongueswhich project into the next lower lamination in the space left by thedownwardly bent tongues of said lower lamination.

The ei'cct of this punching then, is to produce within the shim portionsof each lamination which are crowded longitudinally and which, whileextending into any other lamination will prevent any relative movementthereof. In. other words, the tongues 14 in the top lamination 9 (seeFigure 6) will extend into the openings left by the tongues in the nextlower lami: 95 nation and there will be no movement of `these twolaminas relatively to each other.

Also, the laminae which are more or less malleable, when subjected topressure at a point will adhere so closely as to be dificult toseparate` unintentionally. i This is the ycase of the lowermost laminas,as the lshim, beingon the smooth top of the press bed will not yieldwherethe die projection engages it, but the laminas will be greatlycompressed, and will expand to fill theA punched out portion and gripthe side walls l thereof formed bythe laminas.

i ture, a shim consisting of a When the bearing is to be taken up, theshim may be removed and one lamination or more may be removed by theinsertlon of a en-kmfe thereunder Without disturbin t e other lamin.

ligt is to be understood that I am not limited to the shape of the cutout portion in the lamin, nor am I limited to kind of material orthickness of lamin in making my improved shim.

What I claim is:

1. As an improved article of manufac- Cplurality of superposed sheets,each of sai sheets except the bot-tom sheet being so punched as torovide a tongue which will extend into t e next adjacent sheet, saidbottom sheet presenting a smoothiat surface parallel to the uppersurface of said shim.

2. As an improved article of manufacture, a shim comprising a series oflaminae 1n superposed relation, and tongues punched simu taneousl out ofall'of the laminar, except said ottom laminae, said tongues extendingdownwardly into the space left by the tongue which was punched out ofthe next lower lamination, said ,bottom lamina presenting a smoothsurface parallel with the upper surface of said shim.

JOHN KARMAZIN.

